反应详情

Methyl ester 37 (1.00 g, 3.86 mmol) was dissolved in 4M hydrogen chloride in 1,4-dioxane (40 mL). The resultant solution was stirred at rt for 18 h before being concentrated in vacuo to afford a white solid, 0.656 g, 87%. m.p. 87-89° C.

1. concentrationbefore being concentrated in vacuo
2. customto afford a white solid, 0.656 g, 87%